5728209 has 8 divisors (see below), whose sum is σ = 7745472. Its totient is φ = 3764880.

The previous prime is 5728207. The next prime is 5728223. The reversal of 5728209 is 9028275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5728209 - 2¹ = 5728207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5728209.

It is not an unprimeable number, because it can be changed into a prime (5728207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13234 + ... + 13659.

It is an arithmetic number, because the mean of its divisors is an integer number (968184).

Almost surely, 2^5728209 is an apocalyptic number.

It is an amenable number.

5728209 is a deficient number, since it is larger than the sum of its proper divisors (2017263).

5728209 is a wasteful number, since it uses less digits than its factorization.

5728209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26967.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 5728209 is about 2393.3677109880. The cubic root of 5728209 is about 178.9257934455.

The spelling of 5728209 in words is "five million, seven hundred twenty-eight thousand, two hundred nine".